John Wesley on Joshua 13:4

From the south - That is, from those southern parts of the sea - coast, now possessed by the Philistines, all the more northern parts of the sea - coast being yet inhibited by the Canaanites, almost as far as Sidon. The Amorites - The Amorites were a very strong and numerous people, and we find them dispersed in several parts, some within Jordan, and some without it, some in the south and others in the north, of whom he speaks here.